It is a reliable replacement part that comes as a single unit

1J801-50603

NH-220-CI-2W S/N 141893-UP

Engine Type: YH Commercial name: 1006-60T

Models LZ150

Complete Cylinder Head 23525566 23531254 for Detroit Series 60 12.7L Engine Kubota D1703 It is a reliable replacementComplete Cylinder Head 23525566 23531254 for Detroit Series 60 12. 7L Engine Compatible Part Numbers 23525566 23531254 Compatible Engines Detroit Series 60 12. 7L This complete cylinder head includes valves and springs, designed specifically for the Detroit Series 60 12. 7L engine. It serves as a direct replacement part with the numbers 23525566 and 23531254, ensuring proper fit and function.